Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

Annotations already declare readOnlyHint, idempotentHint, and non-destructive behavior, so safety is covered. The description adds value with sort ordering ('newest first') and notification categories, but says nothing about pagination semantics or result volume beyond what the schema's limit/cursor fields already imply.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Is the description appropriately sized, front-loaded, and free of redundancy?

A single compact sentence that front-loads the resource and packs in the content types and sort order with zero filler. Nothing is redundant with the schema.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

For a simple, non-destructive, no-required-parameter list tool with full schema coverage and complete annotations, the description is sufficient. A brief note on pagination or the relationship to mark_notifications_read would make it fully self-contained, but nothing essential is missing.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema description coverage is 100%, so all four parameters (group, limit, cursor, unread_only) are already documented in the schema with defaults and ranges. The description adds no parameter-level meaning beyond that, which is the expected baseline when the schema does the heavy lifting.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Does the description clearly state what the tool does and how it differs from similar tools?

The description names the specific resource (Skool notifications) and enumerates the content types returned (posts, comments, mentions, likes, approvals), plus the ordering (newest first). An agent can immediately tell what it retrieves, though it does not explicitly contrast with siblings like mark_notifications_read.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Does the description explain when to use this tool, when not to, or what alternatives exist?

Usage is implied by the description — it's the read-side of notifications — but no when-to-use guidance or alternatives are stated. The closely related sibling mark_notifications_read is not referenced, so the agent must infer the division of labor between listing and marking.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.